negotiator.boaframework.offeringstrategy.anac2011
Class IAMhaggler2011_Offering

java.lang.Object
  negotiator.boaframework.OfferingStrategy
      negotiator.boaframework.offeringstrategy.anac2011.IAMhaggler2011_Offering

public class IAMhaggler2011_Offering
extends OfferingStrategy

This is the decoupled Offering Strategy for IAMhaggler2011 (ANAC2011). The code was taken from the ANAC2011 IAMhaggler2011 and adapted to work within the BOA framework. The default opponent model implementation selects the best bid for the opponent. DEFAULT OM: None Decoupling Negotiating Agents to Explore the Space of Negotiation Strategies T. Baarslag, K. Hindriks, M. Hendrikx, A. Dirkzwager, C.M. Jonker

Author:

Mark Hendrikx

Field Summary

protected double	acceptMultiplier
protected RandomBidCreator	bidCreator
protected double	MAXIMUM_ASPIRATION
protected double	RISK_PARAMETER

Fields inherited from class negotiator.boaframework.OfferingStrategy

endNegotiation, helper, negotiationSession, nextBid, omStrategy, opponentModel

Constructor Summary

IAMhaggler2011_Offering()
Empty constructor for the BOA framework.

Method Summary

Bid	chooseAction()
BidDetails	determineNextBid() Determines the next bid the agent will offer to the opponent
BidDetails	determineOpeningBid() Determines the first bid to be offered by the agent
protected Jama.Matrix	generateRiskFunction(double riskParameter) Generate an n-by-m matrix representing the risk based utility for a given utility-time combination.
protected double	generateRiskFunction(double riskParameter, double utility) Generate the risk based utility for a given actual utility.
protected double	getTarget(double opponentUtility, double time) Get the target at a given time, recording the opponent's utility.
static java.lang.String	getVersion() Gets the version number.
void	init(NegotiationSession negotiationSession, OpponentModel opponentModel, OMStrategy omStrategy, java.util.HashMap<java.lang.String,java.lang.Double> parameters) Initializes the offering strategy.
protected Bid	proposeInitialBid()
protected Bid	proposeNextBid(Bid opponentBid)

Methods inherited from class negotiator.boaframework.OfferingStrategy

endSession, getHelper, getNextBid, isEndNegotiation, loadData, setNextBid, storeData

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

RISK_PARAMETER

protected double RISK_PARAMETER

bidCreator

protected RandomBidCreator bidCreator

MAXIMUM_ASPIRATION

protected double MAXIMUM_ASPIRATION

acceptMultiplier

protected double acceptMultiplier

Constructor Detail

IAMhaggler2011_Offering

public IAMhaggler2011_Offering()

Empty constructor for the BOA framework.

Method Detail

init

public void init(NegotiationSession negotiationSession,
                 OpponentModel opponentModel,
                 OMStrategy omStrategy,
                 java.util.HashMap<java.lang.String,java.lang.Double> parameters)
          throws java.lang.Exception

Description copied from class: OfferingStrategy

Initializes the offering strategy. If parameters are used, this method should be overridden.

Overrides:

init in class OfferingStrategy

Parameters:

negotiationSession - state of the negotiation.

opponentModel - opponent model which may be used.

omStrategy - opponent model strategy which may be used.

parameters - optional parameters for the offering strategy.

Throws:

java.lang.Exception - if the offering strategy fails to initialize.

proposeInitialBid

protected Bid proposeInitialBid()
                         throws java.lang.Exception

Throws:

java.lang.Exception

proposeNextBid

protected Bid proposeNextBid(Bid opponentBid)
                      throws java.lang.Exception

Throws:

java.lang.Exception

getTarget

protected double getTarget(double opponentUtility,
                           double time)

Get the target at a given time, recording the opponent's utility.

Parameters:

opponentUtility - The utility of the most recent offer made by the opponent.

time - The current time.

Returns:

the target.

generateRiskFunction

protected Jama.Matrix generateRiskFunction(double riskParameter)

Generate an n-by-m matrix representing the risk based utility for a given utility-time combination. The combinations are given by the time and utility samples stored in timeSamples and utilitySamples

Parameters:

riskParameter - The risk parameter.

Returns:

an n-by-m matrix representing the risk based utility.

generateRiskFunction

protected double generateRiskFunction(double riskParameter,
                                      double utility)

Generate the risk based utility for a given actual utility.

Parameters:

riskParameter - The risk parameter.

utility - The actual utility to calculate the risk based utility from.

Returns:

the risk based utility.

getVersion

public static java.lang.String getVersion()

Gets the version number.

Returns:

the version number.

determineOpeningBid

public BidDetails determineOpeningBid()

Description copied from class: OfferingStrategy

Determines the first bid to be offered by the agent

Specified by:

determineOpeningBid in class OfferingStrategy

Returns:

the opening bid of the agent.

determineNextBid

public BidDetails determineNextBid()

Description copied from class: OfferingStrategy

Determines the next bid the agent will offer to the opponent

Specified by:

determineNextBid in class OfferingStrategy

Returns:

bid to offer to the opponent.

chooseAction

public Bid chooseAction()